the ratio b/w the speed of 2 trains is 7:8 . if the 2nd train runs 400 km in 5 hours, find the speed of 1st train......
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GIVEN,
speed of two trains are in the ratio 7:8 , it can be written as ;
SPEED OF 1st TRAIN = 7X
SPEED OF 2nd TRAIN = 8X
second train runs 400km in 5 hour , so we can say that speed of second train = 80 km/hr (as SPEED = DISTANCE / TIME)
TO FIND ,
speed of first train
SOLV,
as per question , 8X = 80km/hr
then X = 10km/hr
so as speed of the 1st train is 7X , we get ,
speed of the second train = 70 km/hr
HOPE IT HELPS , MARK IT AS BRAINIEST ANSWER
speed of two trains are in the ratio 7:8 , it can be written as ;
SPEED OF 1st TRAIN = 7X
SPEED OF 2nd TRAIN = 8X
second train runs 400km in 5 hour , so we can say that speed of second train = 80 km/hr (as SPEED = DISTANCE / TIME)
TO FIND ,
speed of first train
SOLV,
as per question , 8X = 80km/hr
then X = 10km/hr
so as speed of the 1st train is 7X , we get ,
speed of the second train = 70 km/hr
HOPE IT HELPS , MARK IT AS BRAINIEST ANSWER
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